Uotek UT-792I User Manual
. Pin assignment:
1 DB9 male side RS-485/RS-422
Port1-Port2
6
7
8
9
N/C
N/C
Db9 male
(PIN)
1
2
3
4
5
T/R+
T/RRXD+
RXD-
GND
T/A+
T/B-
R/A+
R/B-
RS-422
RS-485
RS-485 (A+)
RS-485 (B-)
N/C
N/C
1
5
6
9
DB9 male
Profile
Hardware Interface
Connection Type: DR44 female x1;
BUS: X1 2.5Gbps PCI Express
Signal RS-422: T/R+ T/R- RXD+ RXD- GND;
Signal RS-485: Data+ (A) Data-(B) GND
Transmission Rate: 300bps-921.6Kbps
Data Bit: 5 6 7 8; Stop Bit: 1 1.5 2
Parity Bit: None Even odd Space Mark
Flow Control: RTS/CTS XON/XOFF
Operating Temperature: -45 80
Interface Protection:600W surge protection per line for RS-485
RS-422 interface, 15KV ESD protection
Transmission distance: RS-485/422 communication distance
reaches up to 1.2Km
Supporting System: Win2000/XP/Vista/Win7/NT4.0/CE 4.2/5.0/
6.0/Vxworks/Linux 2.4.x/2.6.x
PCI-Express to RS-485/422 card
2-Ports
Model: UT-792I
1
. Connect Diagram
2 3
35.3mm
(1.39in)
17mm
(0.69in)
120mm
(4.72in)
85mm
(3.34in)
102mm
(4.01in)
68.5mm
(2.69in)
. Faults and Ruling Out:
1 Data Communication Failure
A Check the PCI-E interface
B Check if RS-485/RS-422 output interface line is correct
C Check if the power supply light is lit
D Check if the line terminal is connected properly
E Check if the receiving indicator is flashing during reception.
F Check if the sending indicator is flashing during sending.
2 Data Loss or Mistake
A Check if the speed and format of the data communication
UT-792I
UT-792I
UT-792I
UT-792I
Port1
Port1
Port1
Port1
RS-485 device
4.RS-485 P2P connection
3.RS-485 Point to Multi Point connection
2.RS-422 P2P connection
RS-422 device
1.RS-485 Point to Multi Point connection
GND
GND
N/C
UT-792I convert PCI-E into 2 ports RS-422/RS-485,industrial
grade, with built-in Opto-isolator and TVS. Integrated with
600W lightening surge protection for each line; with ESD
protection, protect your device against surge voltage and
transient over voltage caused by any other factors. It also
guarantees the high-speed transmission of RS-422/RS-485
interface.
Highly trust performance and stability with reasonable
price.
I. Summary
.Feature:
The speed of each interface can reaches up to 921.6Kbps
and supports 256byteFIFO drivers and internal soft and hardware
flow control. The universal use PCI is compatible with PCI-E.
RS-422 device
RS-485 device
RS-485 device
4
Driver Installation Procedure
When plug in UT-792I, system pops up a window, select Install
from list or designated location and click Next
A program path selection installation window will pop up
as illustrated below. Select Search in these locations for the
best matching driver , then Search include this location ,
click browse and select the folder in the disc. If your operation
system is XP, the select Win2KXP foler. If other systems, select
the corresponding folder and clieck Next .
Install drivers for the remaining ports following the procedures
above.
After drivers are installed, open device manager and check if there
is any virtual COM port under port tag. If there is not other port driver
installed in the system before, the default COM ports are COM3, 4,
as illustrated below. All drivers have now been installed on UT-792I.
5
6
After located and installed the driver, clieck Finish .
New hardware wizard dialog box will pop up again, and drivers
for the 3 serial ports need to be installed. Select installation
from the list or designated location and click Next .
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